ISDA

Entry Detail

PDB ID:

3UDL

Keywords:

HYDROLASE/HYDROLASE INHIBITOR

Title:

3-heterocyclyl quinolone bound to HCV NS5B

Biological Source:

Source Organism:

Hepatitis C virus subtype 1b

Host Organism:

Escherichia coli

PDB Version:

Deposition Date:

2011-10-28

Release Date:

2011-12-21

Method Details:

Experimental Method:

X-RAY DIFFRACTION

Resolution:

2.17 Å

R-Value Free:

0.24

R-Value Work:

0.19

R-Value Observed:

0.19

Space Group:

P 21 21 21

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Macromolecular Entities

Protein Blast

Polymer Type:polypeptide(L)
Description:HCV NS5B polymerase
Chain IDs:A, B, C, D
Chain Length:576
Number of Molecules:4
Biological Source:Hepatitis C virus subtype 1b

UniProt ID:P26663 Pfam ID:PF00998 EC:3.4.21.98

Ligand Molecules

KLI

Primary Citation

Quinolones as HCV NS5B polymerase inhibitors.

Kumar, D.V, Rai, R, Brameld, K.A, Somoza, J.R, Rajagopalan, R, Janc, J.W, Xia, Y.M, Ton, T.L, Shaghafi, M.B, Hu, H, Lehoux, I, To, N, Young, W.B, Green, M.J.Show

Bioorg.Med.Chem.Lett. 21 82 87 (2011)

PMID: 21145235 DOI: 10.1016/j.bmcl.2010.11.068

Abstact

Hepatitis C virus (HCV) infection is treated with a combination of peginterferon alfa-2a/b and ribavirin. To address the limitations of this therapy, numerous small molecule agents are in development, which act by directly affecting key steps in the viral life-cycle. Herein we describe our discovery of quinolone derivatives, novel small-molecules that inhibit NS5b polymerase, a key enzyme of the viral life-cycle. A crystal structure of a quinoline analog bound to NS5B reveals that this class of compounds binds to allosteric site-II (non-nucleoside inhibitor-site 2, NNI-2) of this protein.

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Primary Citation of related structures